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The code was creating a new instance of vtkOverlappingAMR everytime
RequestInformation was called which would then ShallowCopy() the
metadata coming from upstream. This could lead to creation of multiple
instance of vtkOverlappingAMR that are not properly deallocated and
hence lead to leaks. Instead, the code does not allocate a new instance
but, simply updates the point to point to the metadata object coming from
upstream.

Change-Id: I244a4e3c9c57237fa99042d9bc11f229a8aa9d5c

Fixed a memory leak caused by not de-allocating the AMR metadata.

Change-Id: Ic5bda5c9a7c06bf85d4bd51ce35e35f1e2dc39e3

Change-Id: I81a3f8add9cac92b59d80f448d2f75d425aec525

Changed vtkAMRSliceFilter to be an instance of vtkOverlappingAMRAlgorithm

Change-Id: I8dd8f679354418288a9e97c732ba7a9a9d3405d3

Change-Id: I1d701925239a64aeda6f3f473e9265040a7663f9

Changed the AMR base reader and sub-classes for flash and enzo to use
vtkOverlappingAMR. Further, updated vtkAMRUtilities to work on
vtkOverlappingAMR.

Change-Id: I1a71d37302aaba11ca5897b4832aae8e1b3b30af

Change-Id: I394e2fbb4c738887cd55f0a550fa0ecfcee0a7f0

Removed reference classes/code, that has been moved under the
References directory, from the list of sources to be compiled.

Change-Id: Ia9687b927d0893b942558b14c8debf9112f03d1f

Change-Id: I7652c141a28e5f1aabf7dd92707ce4d4314dedc1

Change-Id: Ia4163b286408a7c8744da40066937a0a483a5da6

Change-Id: I155c56a397918035f7674e3ee370f39a7f6bee27

Change-Id: Iba5e56191c20d77a41865191bd8fec0894539d01

Call GenerateVisibility & ParentChildInfo

Change-Id: Ic1fe431230690119fdbc703a899a4d0e16a8d9f2

Change-Id: Iea0f198f3e638cb8d9cddb644bd57828a18f95d8

Change-Id: Iddae500355e86513fd44cd9d670db48a7c28bb97

Remove call to build parent/child relationship

Change-Id: I51aec672ff364ba9177abafce92d236a32a14b6c

Change-Id: Ic9dcfa980e75037711bcb5804bcab5116c8e1660

Change-Id: I4dfb70d42ca0e93253e1ccd339d6f6e9d7dee8e7

Change-Id: I7558cd377f1fc1ae459c6c79860f291ccf9733af

Change-Id: I20bb2b2f4b6a81ae2ca174d2e5bd8effe0507f5f

Added the new level ID scalars filters to the built.

Change-Id: I39df16623c822b4ef5fbcf99405a917b04f8f59c

Added vtkLevelIdScalars filter, an empty class that inherits
from vtkOverlappingAMRLevelIdScalars for backwards compatibility.

Change-Id: I0ac7426ea2fff014ca2c78a57aa04c8db1bbe32e

Moved common metadata logic such as GetMetaData, HasLevelMetadata
and metadata accessors that return a generic vtkInformation object
to the base class. The overlapping AMR additionally extends these
methods by adding the concept of the vtkAMRBox.

Change-Id: Id467d25c246c7baa244aaac2c36c37249a9072fa

LevelIdScalars filters for both overlapping and non-overlapping AMR. Each
filter is a concrete instance of vtkOverlappingAMRAlgorithm and
vtkNonOverlappingAMRAlgorithm respectively.

Renamed vtkLevelIdScalaras to vtkNonOverlappingAMRLevelIdScalars

Change-Id: Ibaff4be5bdf65b3c8e6019c550aada0e1ac0a718

Change-Id: I1e38aea8d0c88f675be87ded36268803dec2fa0a

Change-Id: Ib03cbfb65694c97c2a548f9f45387548b1bda942

Changed the base class of vtkExtractDataSets to be
vtkMultiBlockDataSetAlgorithm.

Change-Id: Ie548ddef230abf34c8f200c7d6fe2e558ccd6356

Changed the vtkExtractLevel algorithm to inherit from vtkMultiBlockDataSetAlgorithm

Change-Id: Ie1c284b3d1af3a492a4406d1f03158994c8f7799

Added vtkUniformGridAMRAlgorithm that inherits from vtkAlgorithm.Further
implemented vtkOverlappingAMRAlgorithm and vtkNonOverlappingAMRAlgorithm
that both inherit from vtkUniformGridAMRAlgorithm and provide output routines
for each corresponding type: vtkOverlappingAMR and vtkNonOverlappingAMR
respectively. Filters that are agnostic of the AMR type, i.e., work on AMR
(level,idx) pair can implement vtkUniformGridAMRAlgorithm while filters that
expected Berger-Collela AMR can implement vtkOverlappingAMRAlgorithm.

Change-Id: I17f3a05040c8b65b744daa68cdac7a760ee5a978

Change-Id: Ia0b47cf4c6f09fc318dfb0ac2c47ea4d14ef12a7

Change-Id: I917b47bea79782932e62fc21bcf74335fdb0edd6

Custom iterator for vtkUniformGridAMR datasets

Change-Id: Ife39f5cdf7d172b9a39755672d36002f5396156a

Change-Id: I17125d91136b7f555513013bf66323e90a6b2b8f

Change-Id: I0295c14335b8493e8e260db00e6244b2eb39b8cf

Added support for vtkOverlappingAMR and vtkNonOverlappingAMR.

Change-Id: Ib7a7d1786d339162417a4426a69ccb87b094ebcb